I recently found a gem made by Mel Brooks (Bless him and his delightful comedy), called the hitler rap ( Link here). Now a lot of people could and did take offense at this.
I can't tell people what to be offended of and what not, but it indicates that the idea of WW2 still has power over them. What he actually does is using comedy to disarm the idea, giving an opportunity to free oneself from the burden of being bound to this idea.
"If something, be it a thought, social construct, someone else or a situation has power over you and your thinking, you should strive to free yourself from this. Power given over you should be given from a situation of freely choosing to do so."